Finding the Fourth Proportional to 28,066.12, 42,076.98 and 10,534

Step by Step Solution

1. Step 1: Write the proportion equation
   28,066.12 : 42,076.98 = 10,534 : x
2. Step 2: Convert to fraction form
   28,066.12/42,076.98 = 10,534/x
3. Step 3: Cross multiply
   28,066.12x = 42,076.98 × 10,534
4. Step 4: Simplify right side
   28,066.12x = 443,238,907.32
5. Step 5: Solve for x
   x = 443,238,907.32/28,066.12
6. Step 6: Final answer
   x = 15,792.67